:root{
  --bg:#eef1f4; --card:#fff; --ink:#16202a; --mut:#5d6b78; --line:#d6dde4;
  --acc:#1f5fbf; --acc2:#e8f0fb; --ok:#127a45; --okb:#e6f5ec; --err:#b42318; --errb:#fdecea; --warn:#8a5a00; --warnb:#fff6e0;
  --grid:#c9d3dd;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.5 "IBM Plex Sans",system-ui,sans-serif}
code,textarea,.badge{font-family:"IBM Plex Mono",monospace}
.top{display:flex;justify-content:space-between;align-items:center;padding:12px 20px;background:#16202a;color:#fff}
.marca{font-weight:600;font-size:17px}.marca small{font-weight:400;opacity:.65;margin-left:8px;font-size:13px}
.logo{color:#6fa8ff}
.app{display:grid;grid-template-columns:minmax(300px,420px) 1fr;gap:16px;padding:16px;max-width:1400px;margin:0 auto}
.col{display:flex;flex-direction:column;gap:16px;min-width:0}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px}
h1{margin:0 0 6px}h2{margin:0 0 12px;font-size:16px;display:flex;align-items:center;gap:8px}
h3{font-size:13px;margin:12px 0 4px;color:var(--mut);text-transform:uppercase;letter-spacing:.04em}
.n{display:inline-grid;place-items:center;width:22px;height:22px;border-radius:50%;background:var(--acc);color:#fff;font-size:12px}
.cab{display:flex;justify-content:space-between;align-items:center;gap:8px;flex-wrap:wrap}
.badge{font-size:12px;background:var(--acc2);color:var(--acc);padding:3px 8px;border-radius:6px}
.drop{display:grid;place-items:center;min-height:220px;border:2px dashed var(--line);border-radius:8px;cursor:pointer;text-align:center;color:var(--mut);padding:8px;background:#fafbfc}
.drop.sobre{border-color:var(--acc);background:var(--acc2)}
.drop img{max-width:100%;max-height:420px;border-radius:4px}
.pdftag{font-weight:600;color:var(--ink)}
.fila{display:flex;gap:10px;align-items:flex-end;flex-wrap:wrap;margin-top:12px}
.fila label{display:flex;flex-direction:column;font-size:12px;color:var(--mut);gap:4px}
.grow{flex:1;min-width:160px}
input,select,textarea{font:inherit;padding:8px 10px;border:1px solid var(--line);border-radius:6px;background:#fff;color:var(--ink)}
textarea{width:100%;min-height:260px;font-size:12px;margin:8px 0}
.btn{font:inherit;font-weight:600;border:0;border-radius:6px;padding:9px 16px;background:var(--acc);color:#fff;cursor:pointer}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn.ghost{background:transparent;color:var(--acc);border:1px solid var(--acc)}
.btn.full{width:100%;margin-top:12px}
.estado{margin-top:10px;font-size:13px;color:var(--mut);min-height:20px}
.estado.ok{color:var(--ok)}.estado.err{color:var(--err)}
.estado.carga::before{content:"";display:inline-block;width:12px;height:12px;margin-right:8px;border:2px solid var(--acc);border-right-color:transparent;border-radius:50%;animation:g 1s linear infinite;vertical-align:-2px}
@keyframes g{to{transform:rotate(360deg)}}
.prevbox{border:1px solid var(--line);border-radius:8px;min-height:360px;display:grid;place-items:center;
  background-color:#fbfcfd;background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:24px 24px;background-position:-1px -1px}
.prev{width:100%;height:auto;max-height:560px}
.prev .exterior{stroke:#16202a}.prev .interior{stroke:var(--acc)}
.prev .ejes line{stroke:#9aa7b4;stroke-dasharray:4 2;vector-effect:non-scaling-stroke}
.prev .marca{fill:none;stroke:var(--err)}.prev .origen{fill:var(--err)}
.vacio{color:var(--mut);padding:20px;text-align:center}
.msg{border-radius:6px;padding:8px 12px;margin-top:10px;font-size:13px}
.msg ul{margin:4px 0 0;padding-left:18px}
.msg.ok{background:var(--okb);color:var(--ok)}.msg.err{background:var(--errb);color:var(--err)}.msg.warn{background:var(--warnb);color:var(--warn)}
details{margin-top:12px}summary{cursor:pointer;color:var(--acc);font-size:13px}
.analisis{font-size:13px;color:var(--mut);white-space:pre-wrap}
.chips{display:flex;flex-wrap:wrap;gap:6px}.chips span{background:var(--acc2);color:var(--acc);border-radius:4px;padding:1px 7px;font:12px "IBM Plex Mono",monospace}
.pasos{margin:12px 0 0;padding-left:20px;font-size:13px;color:var(--mut)}
.hist{list-style:none;margin:0;padding:0}
.hist li{display:flex;justify-content:space-between;gap:8px;padding:6px 0;border-bottom:1px solid var(--line);font-size:13px}
.hist button{background:none;border:0;color:var(--acc);cursor:pointer;font:inherit;text-align:left;padding:0}
.hist small{color:var(--mut)}
.login{display:grid;place-items:center;min-height:80vh;padding:16px}
.login .card{width:100%;max-width:360px;display:flex;flex-direction:column;gap:12px}
@media (max-width:860px){.app{grid-template-columns:1fr;padding:12px}}
.pill{font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px}
.pill::before{content:"●";margin-right:6px}
.pill.off{background:#eef1f4;color:var(--mut)}.pill.warn{background:var(--warnb);color:var(--warn)}.pill.on{background:var(--okb);color:var(--ok)}
.card.sw{border-color:#b9cbe6}
a{color:var(--acc)}